Unbelief: Miracles Designed to Convince Those In
Source: TTT
John 10:37, 38
If I am not doing the works of My Father, then do not believe Me. / But if I am doing them, even though you do not believe Me, believe the works themselves, so that you may know and understand that the Father is in Me, and I am in the Father.”
1 Corinthians 14:22
Tongues, then, are a sign, not for believers, but for unbelievers. Prophecy, however, is for believers, not for unbelievers.